Individually wrapped absorbent articles

Abstract

The transfer of the functional agent to an unexpected part can be prevented, and the dispersion of the functional agent before use can be prevented, so that the effect of the functional agent can be fully exerted when worn. A sanitary napkin 1 having a surface sheet 3 constituting a skin contact surface layer and a pair of wing-shaped flaps W having a wing adhesive layer 9 for fixing to underwear is a separately packaged sanitary napkin N that is folded along the length direction together with a packaging sheet 10 and separately packaged. The wing-shaped flaps W are folded along the skin contact surface side, and the wing adhesive layer 9 provided in the folded portion is integrally covered by a wing release sheet 12, and the surface sheet 3 in the area where the wing release sheet 12 is laminated contains a functional agent 20 having a specific function.

Description

Technical Field

[0001] The present invention relates to an individually packaged absorbent article in which absorbent articles such as sanitary napkins, panty liners, incontinence pads, etc. are individually packaged by a packaging sheet. More specifically, it relates to an individually packaged absorbent article in which an absorbent article containing a functional agent having a specific function in a predetermined area of ​​a surface sheet is individually packaged. Background Art

[0002] Absorbent articles containing functional agents such as skin care agents, deodorants, fragrances, cooling agents, etc. are known. For example, Patent Document 1 below discloses an absorbent article in which a fragrance region is covered with a folding piece of a release sheet with the first and second length folds as base points.

[0003] In addition, the following Patent Document 2 discloses an absorbent article formed by providing a functional material area having a functional material between an absorbent layer and a surface sheet, and compressing an embossed portion in the thickness direction of adjacent layers adjacent to the functional material area and the functional material area in the thickness direction.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2013-208318

[0007] Patent Document 2: Japanese Patent Application Publication No. 2016-67749 Summary of the invention

[0008] Problems to be solved by the invention

[0009] The above-mentioned Patent Document 1 records that the fragrance area is covered by a folding piece serving as a release sheet, thereby making it difficult for the fragrance component to be released before use. However, the release sheet only partially covers the functional agent. Therefore, when the surface sheet contains the functional agent, there is a possibility that the functional agent will be transferred to the part of the absorbent article that is stacked on the functional agent and folded, which may stain the clothes when worn.

[0010] Furthermore, in Patent Document 2, a functional area is provided between the absorbent layer and the surface sheet, but no sheet is provided to cover the functional area. Therefore, in the case of perfumes, the aromatic components may volatilize before use, and the effect may be greatly reduced during use.

[0011] Therefore, a main object of the present invention is to provide an individually packaged absorbent article that prevents the transfer of a functional agent to an unintended portion and prevents the functional agent from scattering before use, thereby enabling the functional agent to fully exert its effect when worn.

[0012] Methods for solving problems

[0013] In order to solve the above-mentioned problems, as a first mode, there is provided an individually packaged absorbent article, characterized in that the absorbent article is individually packaged by being folded along the length direction together with a packaging sheet, the absorbent article comprising a surface sheet constituting a skin contact surface layer, and a pair of wing-shaped flaps having a wing adhesive layer for fixing to underwear,

[0014] The wing-shaped flaps are folded toward the skin contact surface, and the wing adhesive layer provided at the folded portion is integrally covered by a release sheet.

[0015] The surface sheet in the region where the release sheet is laminated contains a functional agent having a specific function.

[0016] In the first embodiment, the functional agent is contained on the surface sheet in the area where the release sheet covering the wing adhesive layer of the wing-shaped flap is laminated, so when the absorbent article is folded along the length direction together with the packaging sheet and packaged separately, the functional agent can be prevented from being transferred to an unexpected part, and the worry of contaminating the wearer's clothes when the absorbent article is worn is eliminated. In addition, in the state of separate packaging, the functional agent contained in the surface sheet is covered by the release sheet, so the dispersion of the functional agent before use can be prevented, and the effect of the functional agent can be fully exerted when worn.

[0017] As a second embodiment, there is provided an individually packaged absorbent article as described in Technical Solution 1, wherein the functional agent is arranged over the entire surface in a predetermined area, or a plurality of the functional agents are arranged with intervals in the length direction or width direction of the absorbent article, or a plurality of the functional agents are arranged with intervals in the length direction and width direction of the absorbent article.

[0018] In the second embodiment, the arrangement of the functional agent is specified. If the functional agent is in the region where the release sheet is laminated, it can be arranged over the entire surface of the region, or multiple functional agents can be arranged with intervals in the length direction or width direction of the absorbent article, or multiple functional agents can be arranged with intervals in the length direction and width direction of the absorbent article.

[0019] As a third aspect, there is provided the individually packaged absorbent article according to claim 1 or 2, wherein the wing-shaped flaps are folded at both side portions that are not in direct contact with the top sheet.

[0020] In the above-mentioned third method, when packaged individually, if the wing-shaped flaps are folded in a manner that directly contacts the surface sheet containing the functional agent, the functional agent will be transferred to the wing-shaped flaps, and there is a concern that the wearer's clothes will be contaminated when worn. Therefore, the wing-shaped flaps are folded on both sides that are not in direct contact with the surface sheet.

[0021] As a fourth aspect, there is provided the individually packaged absorbent article according to claim 3, wherein the wing-shaped flaps are folded back along the crotch portion of underwear when worn, and the wing-shaped flaps are folded together with the release sheet.

[0022] The fourth method is to prevent the functional agent from being transferred to the wing-shaped flaps. Therefore, when the wing-shaped flaps are folded at the two side portions that are not in direct contact with the surface sheet, they are rolled into the crotch portion of the underwear and folded back when worn. A fold mark is provided at a position different from the original fold line, thereby preventing the first method from being difficult to wear. The fold line when worn has a fold mark. Therefore, when worn, the wing-shaped flaps are folded back along the crotch portion of the underwear to the fold line position, and the wing-shaped flaps are folded together with the above-mentioned release sheet.

[0023] As a fifth aspect, there is provided the individually packaged absorbent article according to claim 3, wherein a folding auxiliary line is provided at a folding line position of the wing-shaped flaps that are folded back along the crotch portion of underwear when worn.

[0024] The fifth method is to prevent the functional agent from being transferred to the wing-shaped flaps. Therefore, when the wing-shaped flaps are folded at the two side portions that are not in direct contact with the surface sheet, they are rolled into the crotch portion of the underwear and folded back when worn, with creases at positions different from the original fold lines, thereby preventing the second means from being difficult to wear. Therefore, when worn, the fold line position of the wing-shaped flaps is folded back along the crotch portion of the underwear, and folding auxiliary lines including heat seals, embossed portions, etc. are provided.

[0025] As a sixth aspect, there is provided the individually packaged absorbent article according to any one of claims 1 to 5, wherein the article comprises side nonwoven fabrics on both sides of the skin contacting surface along the longitudinal direction,

[0026] The functional agent is contained in the surface sheet between the side nonwoven fabrics on both sides.

[0027] In the sixth embodiment, when the two side portions on the skin contact surface side are provided with side nonwoven fabrics along the length direction, the surface sheet between the side nonwoven fabrics on the two side portions contains the functional agent. Therefore, the part constituting the skin contact surface of the surface sheet contains the functional agent, and the effect of the functional agent is easy to act on the skin of the wearer.

[0028] Effects of the Invention

[0029] As described above in detail, according to the present invention, the transfer of the functional agent to an unintended portion can be prevented, and the dispersion of the functional agent before use can be prevented, so that the effect of the functional agent can be fully exerted when worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a perspective view showing an individually packaged sanitary napkin N according to the present invention.

[0031] Figure 2 It is a partially broken development view showing the sanitary napkin 1.

[0032] Figure 3 for Figure 2 The III-III line view.

[0033] Figure 4 It is a plan view showing the individual packaging method (part 1) of the sanitary napkin 1.

[0034] Figure 5 It is a plan view showing the individual packaging method (part 2) of the sanitary napkin 1.

[0035] Figure 6 for Figure 5 VI-VI line view.

[0036] Figure 7 It is an enlarged plan view of a main part of the sanitary napkin 1 according to a modified example.

[0037] Figure 8 It is an enlarged plan view of a main part of the sanitary napkin 1 according to a modified example.

[0038] Fig. 9 It is a plan view showing the individual packaging method (part 1) of the sanitary napkin 1 according to a modified example.

[0039] Fig.10 It is a plan view showing the individual packaging method (part 2) of the sanitary napkin 1 according to a modified example.

[0040] Fig.11 This is a plan view of the sanitary napkin 1 showing a first means for assisting the folding position of the wing-shaped flaps W when wearing.

[0041] Fig.12 This is a plan view of the sanitary napkin 1 showing a second means for assisting the folding position of the wing-shaped flaps W when wearing.

[0042] Fig.13 for Fig.12 View along line XIII-XIII. DETAILED DESCRIPTION

[0043] Hereinafter, the embodiments of the present invention will be described with reference to the attached drawings. Figure 1 Elaborate on the side.

[0044] The individually packaged absorbent article of the present invention is an absorbent article such as a sanitary napkin, a panty liner, or an incontinence pad that is individually packaged with a packaging sheet. As an embodiment of the absorbent article, a sanitary napkin will be described as an example.

[0045] [Basic structure of individually packaged sanitary napkin N]

[0046] The individually packaged sanitary napkin N of the present invention is as follows Figure 1 As shown, it includes a sanitary napkin 1 and a packaging sheet 10 for individually packaging the sanitary napkin 1. Reference numeral 14 is an adhesive fixing tape provided to assist in sealing the opening end, which may be omitted.

[0047] The above-mentioned sanitary napkin 1 is as Figure 2 and Figure 3 As shown, it has: a liquid-impermeable back sheet 2 including a polyethylene sheet, etc.; a liquid-permeable surface sheet 3 that allows menstrual blood, secretions, etc. (hereinafter, collectively referred to as body fluids) to quickly penetrate; an absorbent body 4 formed by cotton pulp or synthetic pulp, etc. between the two sheets 2 and 3; a side non-woven fabric 7 arranged along the length direction on both sides of the skin contact surface side, which is almost the entire length, and around the above-mentioned absorbent body 4, at its front and rear end edges, the outer edges of the above-mentioned back sheet 2 and the surface sheet 3 are joined by bonding means such as hot melt adhesive, heat sealing, and ultrasonic sealing. In addition, at its two side edges, the above-mentioned back sheet 2 extending laterally compared with the absorbent body 4 is joined by bonding means such as hot melt adhesive, heat sealing, and ultrasonic sealing, so that there is no folding wing between the absorbent body. In addition, in the example of the figure, in order to improve the shape retention and diffusivity of the above-mentioned absorbent body 4, the above-mentioned absorbent body 4 is surrounded by a wrapped sheet 5 formed by crepe paper or non-woven fabrics, etc., and the wrapped sheet 5 can be omitted. Although not shown, a second sheet made of a hydrophilic nonwoven fabric or the like having substantially the same shape as the surface sheet 3 may be disposed adjacent to the non-muscle side of the surface sheet 3 .

[0048] Hereinafter, the structure of the sanitary napkin 1 will be described in further detail.

[0049] The back sheet 2 uses a sheet material having at least water barrier properties such as polyethylene, etc., and from the viewpoint of preventing evaporation, it is desirable to use a sheet material having moisture permeability. As the water barrier and moisture permeability sheet material, it is suitable to use a microporous sheet obtained by stretching in a uniaxial or biaxial direction after the inorganic filler is melt-kneaded and formed into a sheet in an olefin resin such as polyethylene and polypropylene. As the back sheet 2, a polyethylene laminated nonwoven fabric laminated with a plastic film and a nonwoven fabric can be used.

[0050] Next, the surface sheet 3 is suitable for using nonwoven fabrics with or without holes, porous plastic sheets, etc. As the raw material fiber constituting the nonwoven fabric, in addition to synthetic fibers such as olefin systems, polyester systems, polyamide systems, such as polyethylene or polypropylene, natural fibers such as regenerated fibers, cotton, such as rayon, cuprammonium fibers, can be adopted, and nonwoven fabrics obtained by appropriate processing methods such as water needle method, spunbond method, melt bonding method, meltblown method, needle punching method can be used. Among these processing methods, the water needle method is excellent in being rich in softness and drapability, and the melt bonding method is excellent in being fluffy and high in compression recovery. When the surface sheet 3 forms a large amount of through holes, body fluids are rapidly absorbed, and dry touch becomes excellent. The fiber of the nonwoven fabric can be any one of long fibers or short fibers, and preferably short fibers can be used to express the feel of towel cloth. In addition, in order to make the embossing process easy, the material of olefin fibers such as polyethylene or polypropylene with a relatively low melting point can be used. Furthermore, composite fibers of core-sheath type fibers, side-by-side type fibers, and split type fibers, in which fibers with a high melting point are used as a core and fibers with a low melting point are used as a sheath, can be suitably used.

[0051] The absorbent 4 between the above-mentioned back sheet 2 and the surface sheet 3 is made of, for example, cotton-like pulp and water-absorbent polymer. The above-mentioned water-absorbent polymer is mixed in the pulp constituting the absorbent, for example, as granular powder. As the above-mentioned pulp, cellulose fibers such as chemical pulp, dissolving pulp, and artificial cellulose fibers such as acetates obtained from wood can be enumerated, and the coniferous tree pulp with a long fiber length compared with the broadleaf tree pulp is suitable for use from function and price aspect. When the wrapped sheet 5 around the absorbent 4 is set, the result is that the wrapped sheet 5 is interposed between the surface sheet 3 and the absorbent 4, and the body fluid is rapidly diffused by the above-mentioned wrapped sheet 5 excellent in absorbency, and the back-seepage of these body fluids is prevented.

[0052] In addition, synthetic fibers can be mixed in the absorbent 4. For example, the synthetic fibers can be polyolefins such as polyethylene or polypropylene, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as nylon, and copolymers thereof, and these two can be mixed. In addition, composite fibers such as core-sheath type fibers, parallel fibers, and split fibers with high melting point fibers as cores and low melting point fibers as sheaths can also be used. It is desirable that the synthetic fibers have an affinity for body fluids, and in the case of hydrophobic fibers, synthetic fibers surface-treated with a hydrophilizing agent are used.

[0053] The width dimension of the surface sheet 3 is shown in the example. Figure 3As shown in the cross-sectional view of the side nonwoven fabric 7, it is slightly longer than the width of the absorbent body 4 and only covers the absorbent body 4. In contrast, a side nonwoven fabric 7 different from the surface sheet 3 is provided on the outer side. Specifically, the side nonwoven fabric 7 is made of a nonwoven fabric raw material that has been subjected to an appropriate water-repellent or hydrophilic treatment for the purpose of preventing the penetration of menstrual blood, secretions, etc., or improving the skin touch. As the side nonwoven fabric 7, a nonwoven fabric formed by an appropriate processing method using natural fibers, synthetic fibers, or regenerated fibers as raw materials can be used. It is preferred to eliminate the rough feeling and prevent stuffiness, so a nonwoven fabric that suppresses the unit weight and maintains breathability can be used. Specifically, it is desired to use a nonwoven fabric with a unit weight of 13 to 23 g / m 2 In order to reliably prevent the penetration of body fluids, it is suitable to use a water-repellent nonwoven fabric coated with a silicone-based, paraffin-based, alkyl chromium chloride-based water-repellent agent or the like.

[0054] The side nonwoven fabric 7 is as follows Figure 3 As shown in the figure, the outer side portion compared to the middle portion in the width direction is bonded from a predetermined inner position to the outer edge of the back sheet 2 using an adhesive such as a hot melt adhesive, and the folded wing portion without the absorbent body 4 is formed on both sides of the absorbent body 4 through the laminated sheet portion of the side nonwoven fabric 7 and the back sheet 2. The folded wing portion is almost equivalent to the wearer's body fluid discharge portion H (refer to Figure 2 . ) on the side of the absorbent body, forming a pair of left and right wing-shaped folding wings W, W.

[0055] like Figure 2 and Figure 3 As shown, the non-skin contact surface (outside of the back sheet 2) of the main part of the absorbent body 4 is interposed between the surface sheet 3 and the back sheet 2. In order to fix the underwear, three main adhesive layers 8, 8 are formed in the illustrated example by an appropriate coating pattern. In addition, the underwear contact surface (outside of the back sheet 2) of the wing-shaped flaps W and W is respectively provided with a wing adhesive layer 9. When the underwear is worn, the wing-shaped flaps W and W are folded back on the outside (back sheet 2 side) at the base end position and are wound and fixed to the crotch portion of the underwear.

[0056] As the adhesive forming the above-mentioned adhesive layer 8,9, it is suitable to use any one of for example styrene-based polymers, tackifiers, and plasticizers as the adhesive of main component. As the above-mentioned styrene-based polymers, styrene-ethylene-butylene-styrene block copolymers, styrene-butylene-styrene block copolymers, styrene-isobutylene-styrene copolymers, etc. can be enumerated, and only one of them can be used, or it can be more than two kinds of polymer blends. Wherein, from the aspect of good thermal stability, styrene-ethylene-butylene-styrene block copolymers are preferably considered. In addition, as the above-mentioned tackifier and plasticizer, solid materials at room temperature can be preferably used, and tackifiers can enumerate for example C5 series petroleum resins, C9 series petroleum resins, dicyclopentadiene series petroleum resins, rosin series petroleum resins, polyterpene resins, terpene phenol resins, etc., and the above-mentioned plasticizers, for example, except monomer plasticizers such as tricresyl phosphate, dibutyl phthalate, dioctyl phthalate, can enumerate polymer plasticizers such as vinyl polymers and polyesters.

[0057] In this individually packaged sanitary napkin N, if Figures 4 to 6 As shown in the figure, the main body adhesive layers 8, 8 ... are integrally covered with a main body peeling sheet 11 so as to be releasable, and the wing adhesive layers 9, 9 provided at the portion where each wing-shaped flap W is folded on the skin contacting surface side are releasably covered with a wing peeling sheet 12 integrally covering them. The main body peeling sheet 11 is non-peelably adhered to the packaging sheet 10 laminated on the outside thereof, and when the sanitary napkin 1 is taken out of the individually packaged sanitary napkin N, the main body peeling sheet 11 is preferably peeled off from the main body adhesive layers 8 ... and remains on the packaging sheet 10. On the other hand, the wing peeling sheet 12 may be non-peelably adhered to the outside of the packaging sheet 10 folded in the longitudinal direction, and may not be bonded to the packaging sheet 10.

[0058] As the release sheets 11 and 12, for example, paper or plastic sheets subjected to demolding treatment by coating or spraying a demolding treatment liquid such as silicone resin, fluorine resin, or tetrafluoroethylene resin on the contact surface of the adhesive layer 8 and 9 that prevents the deviation can be used. In particular, when a plastic sheet is used as the wing release sheet 12, the dispersion of the functional agent 20 described in detail later can be further suppressed, so it is preferred. In addition, even if demolding treatment is not performed, if it does not substantially cause a decrease in adhesion, it can be a film itself or a nonwoven fabric itself.

[0059] The above-mentioned packaging sheet 10 is as Figure 5 As shown in the figure, a sheet-like member formed into a rectangular shape is used. Specifically, polyolefin films such as polypropylene and polyethylene, films of polyester and polyvinyl alcohol, nonwoven fabrics, paper, polyethylene laminated nonwoven fabrics, etc. are used. If the design brought by printing is important, films are preferred, and if the feel and softness are important, nonwoven fabrics, paper, etc. are preferred.

[0060] like Figure 5 As shown, the length dimension of the above-mentioned packaging sheet 10 is formed so that at least the end edge of the front side of the sanitary napkin 1 extends forward compared to the front end of the sanitary napkin 1, and the width dimension is formed so that the left and right folded wings of the sanitary napkin 1 are slightly longer than the width dimension folded on the surface sheet 3 side.

[0061] The sanitary napkin 1 is individually packaged by the packaging sheet 10. First, Figure 4 As shown in the figure, the left and right flaps are folded on the surface sheet 3 side, the main body adhesive layer 8 ... arranged on the back sheet 2 side of the main body portion is covered with the main body release sheet 11, and the wing adhesive layers 9, 9 arranged on the folded back wing-shaped flaps W, W are covered with the wing release sheet 12. In the actual manufacturing process, the main body adhesive layer 8 ... is applied to the sanitary napkin arrangement surface of the main body release sheet 11, and the wing adhesive layers 9, 9 are applied to the sanitary napkin arrangement surface of the wing release sheet 12, and then, the sanitary napkin 1 is arranged on these release sheets 11, 12, so that the adhesive is transferred to the predetermined surface of the sanitary napkin 1.

[0062] Then, if Figure 5 As shown, in the portion located on the rear side compared to the wing-shaped flap W, the rear end portion A of the sanitary napkin 1 is folded along the fold line X1 in the width direction together with the packaging sheet 10 on the side of the sanitary napkin 1 at the rear portion B near the wing-shaped flap W, and then the portion shown in A and the portion shown in B are overlapped, and then they are folded along the fold line X2 in the width direction on the side of the sanitary napkin 1 at the portion C having the wing-shaped flap W, and the portion D located on the front side compared to the wing-shaped flap W is folded in four along the fold line X3 in the width direction on the side of the sanitary napkin 1 at the portion shown in C where the above-mentioned portion shown in A and the portion shown in B are overlapped, as shown in the figure. Figure 1 As shown in the figure, a pair of side edge portions of the opening of the packaging sheet 10 are formed into side edge seal portions 13, 13 by embossing, hot melt bonding, adhesive or other appropriate sealing means alone or in combination, and the width direction center portion of the longitudinal direction end edge of the packaging sheet 10 is sealed by an adhesive fixing tape 14 as needed. As described above, an individually packaged sanitary napkin N is obtained.

[0063] 〔Functional agent〕

[0064] In this individually packaged sanitary napkin N, if Figure 5As shown in the figure, the surface sheet 3 in the area where the wing peeling sheet 12 of each wing adhesive layer 9, 9 of the left and right wing-shaped flaps W, W folded on the side of the surface sheet 3 is laminated contains a functional agent 20 having a specific function. In other words, on the skin contact surface side of the area containing the functional agent 20, a wing peeling sheet 12 covering the area over the entire surface is laminated. It is preferred that there is nothing between the surface sheet 3 containing the functional agent 20 and the wing peeling sheet 12, and the wing peeling sheet 12 is directly laminated on the skin contact surface side of the surface sheet 3, and the wing-shaped flaps W, W folded on the side of the surface sheet 3 can be interposed for the individual packaging of the sanitary napkin 1.

[0065] The functional agent 20 is a material that imparts specific functions such as skin care functions such as moisturizing and hydrating effects, deodorizing or deodorizing functions, fragrance functions, cooling or warming functions, etc. to the wearer. For example, skin care agents, deodorants, fragrances, cooling agents, etc. can be used.

[0066] The functional agent 20 may be in any form such as liquid, solid (powder, etc.), gel, etc. In the case of liquid or gel, it may be directly applied, and in the case of solid such as powder, it may be included in the surface sheet 3 by a method of adhering it with an adhesive, etc. The surface containing the functional agent 20 may be either the skin contact surface or the non-skin contact surface of the surface sheet 3, and may be included in both surfaces.

[0067] In the present individually packaged sanitary napkin N, the wing peeling sheet 12 is laminated over the entire surface of the region containing the functional agent 20 on the skin contacting side of the region, so that even when the sanitary napkin 1 is folded together with the packaging sheet 10 and individually packaged, the functional agent 20 can be prevented from being transferred to unintended portions of the sanitary napkin 1. Therefore, there is no concern that the functional agent 20 transferred to unintended portions of the sanitary napkin 1 will adhere to clothes when worn, and the clothes will be contaminated.

[0068] In addition, the wing release sheet 12 is subjected to a demolding treatment on the contact surface with the wing adhesive layers 9, 9, so that the airtightness of the sheet itself is improved and a water-repellent effect is imparted, and such a wing release sheet 12 is laminated on the entire surface of the region containing the functional agent 20, so that the diffusion of the aromatic components of the aromatic agent and the volatilization of the skin care agent can be reliably suppressed. Therefore, the functional agent 20 can be prevented from emitting before use, and the effect of the functional agent can be fully exerted when worn.

[0069] The functional agent 20 is preferably contained in an area corresponding to the area of ​​the wearer's body fluid discharge part H. That is, it can be arranged in an area including the length range of the sanitary napkin where the wing-shaped flaps W, W are arranged on both sides. In this way, skin care agents, deodorants, cooling agents, etc. can act on the wearer's body fluid discharge part H, and when the fragrance effect is exerted on the wearer by the volatilization of the fragrance, the fragrance effect is more easily exerted by the action of peeling off the wing peeling sheet 12 when the individually packaged sanitary napkin N is opened.

[0070] As in this embodiment, in the case of a sanitary napkin 1 having side nonwoven fabrics 7, 7 respectively provided along the length direction on both sides of the skin contact surface, the functional agent 20 is preferably contained in the surface sheet 3 between the side nonwoven fabrics 7, 7 of the two side portions. Thus, the functional agent 20 acts directly on the skin surface of the wearer, so the effect of the functional agent can be more reliably exerted.

[0071] The wing peeling sheet 12 can be formed in a predetermined size according to the size of the functional agent 20 if it has a size that covers at least the wing adhesive layers 9, 9 provided on the left and right wing-shaped flaps W, W as a whole. Figure 5 As shown in FIG. 1 , when the functional agent 20 is formed in the long region of the front and rear sides of the sanitary napkin in the longitudinal direction compared with the wing adhesive layers 9, 9, the wing release sheet 12 is formed to have a size substantially the same as that of the functional agent 20 or a size slightly larger than that of the functional agent 20. Figure 5 As shown, it can be formed with a size slightly larger than the functional agent 20, such as Figure 7 As shown in (A), it can be formed in almost the same size as the functional agent 20. Figure 5 As shown in FIG. 1 , the functional agent 20 can be disposed between the fold lines X2 and X3 when individually packaged at the front and rear sides of the region having the wing-shaped flaps W and W, as shown in FIG. Figure 7 As shown in (B), it can be arranged to extend outside one or both of these fold lines X2 and X3.

[0072] The functional agent 20 is as follows Figure 5 As shown, it can be arranged over the entire surface in a predetermined area, such as Figure 8 As shown in (A), a plurality of sanitary napkins 1 may be arranged at intervals in the length direction thereof. Figure 8 As shown in (B), a plurality of sanitary napkins 1 may be arranged at intervals in the width direction of the sanitary napkin 1. Figure 8 In the embodiment shown in (A), three rectangular functional agent placement regions 20a that are long in the width direction of the sanitary napkin 1 are arranged at intervals in the longitudinal direction. Figure 8In the embodiment shown in (B), two rectangular functional agent arrangement regions 20b that are long in the longitudinal direction of the sanitary napkin 1 are arranged at intervals in the width direction.

[0073] Further, the functional agent 20 is as follows Figure 8 As shown in (C) and (D), a plurality of sanitary napkins 1 may be arranged at intervals in the longitudinal direction and the width direction. Figure 8 In the embodiment shown in (C), a plurality of circular functional agent arrangement regions 20c are arranged in a staggered grid pattern. Figure 8 In the embodiment shown in (D), a plurality of diamond-shaped functional agent arrangement regions 20d are arranged in a staggered grid pattern.

[0074] Figure 5 In the embodiment shown, the folded wing-shaped flaps W, W are directly laminated on the skin contacting side of the top sheet 3 containing the functional agent 20, so the functional agent 20 is transferred to the folded wing-shaped flaps W, W, and there is a concern that the functional agent 20 may adhere to clothes when worn. Fig. 9 As shown in the figure, the wing-shaped flaps W, W can be folded at the two side portions that are not in direct contact with the surface sheet 3. That is, each wing-shaped flap W is folded within the width of the side nonwoven fabric 7, and the front end of the folded wing-shaped flap W is folded in a manner that is substantially aligned with the end edge of the side nonwoven fabric 7 on the central side of the sanitary napkin width direction or is positioned outside of it. At this time, the wing adhesive layer 9 is arranged in a manner that is arranged on the folded portion of the wing-shaped flap W, Fig. 9 As shown in FIG. 1 , in a state where the wing-shaped flaps W, W are folded, the wing adhesive layers 9, 9 are arranged on the skin contacting side of the sanitary napkin 1. In this state, as shown in FIG. Fig.10 As shown, the left and right wing adhesive layers 9 , 9 are integrally covered with a wing release sheet 12 .

[0075] In this way, by folding the wing-shaped flaps W, W at the two side portions that are not in direct contact with the surface sheet 3, it is possible to prevent the functional agent 20 from being transferred to the wing-shaped flaps W, W, and it is possible to prevent the functional agent 20 from being attached to clothes and contaminated when worn. In addition, the wing peeling sheet 12 is directly laminated on the skin contacting side of the surface sheet 3 containing the functional agent 20, so the airtightness and water repellency of the wing peeling sheet 12 can more reliably prevent the functional agent 20 from scattering before use.

[0076] here, Fig. 9 In the morphological example shown, the wing-shaped flaps W, W are rolled into the crotch portion of the underwear when worn, and are folded at a portion different from the folding line along the outer side to be separately packaged. Therefore, assuming that due to the folding line during separate packaging, it is difficult for the wing-shaped flaps W, W to be folded along the crotch portion of the underwear when worn, it is preferred to implement the following means to assist in folding the wing-shaped flaps W, W when worn.

[0077] As a first means of assisting the folding position of the wing-shaped flaps W, W when wearing, Fig.11 As shown in the figure, the wing-shaped flaps W, W are folded together with the wing peeling sheet 12 along the folding line of the folded-back wing-shaped flaps W, W along the crotch portion of the underwear when worn. As a result, when the wing-shaped flaps W, W are worn, they are folded along the folding line, and it is easy to fold the wing-shaped flaps W, W along the crotch portion of the underwear when worn. The folding direction can be the skin contact side of the sanitary napkin 1 as shown in the figure, and can be the non-skin contact side of the sanitary napkin 1 in the same direction as the folding direction of the wing-shaped flaps W, W when worn.

[0078] In addition, as a second means for assisting the folding position of the wing-shaped flaps W, W when wearing, as shown in FIG. Fig.12 and Fig.13 As shown in the figure, when wearing, along the crotch portion of the underwear, along the folding line of the folded wing-shaped flaps W, W, a folding auxiliary line 21 is set. The above-mentioned folding auxiliary line 21 is formed by heat sealing and embossing. In the example shown in the figure, it is formed by a concave embossing from the back sheet 2 side to the side non-woven fabric 7 side. In addition, the above-mentioned embossing can be formed in a concave cross-sectional shape from the side non-woven fabric 7 side to the back sheet 2 side. The plane shape of the above-mentioned folding auxiliary line 21 can be formed in a way that conforms to the outer shape of the crotch portion of the underwear, through the front and rear base ends of each wing-shaped flap W, and in a way that the central part of the sanitary napkin length direction of the wing-shaped flap W is connected to the side edge of the absorbent body 4, forming a circular arc line that is bent inwardly in the width direction. By setting the above-mentioned folding auxiliary line 21, the wing-shaped flaps W, W are easy to fold back with the folding auxiliary line 21 as the base point.

[0079] [Other forms]

[0080] In the above-mentioned form example, the individually packaged sanitary napkin N is made into a four-folded individually packaged sanitary napkin N in which the area closer to the rear side than the wing-shaped flap W is folded twice along the fold lines X1 and X2, and the area closer to the front side than the wing-shaped flap W is folded once along the fold line X3. However, it may be an individually packaged sanitary napkin N of three folds in which the area closer to the rear side than the wing-shaped flap W is folded once, and the area closer to the front side than the wing-shaped flap W is folded once, or it may be an individually packaged sanitary napkin N of more than five folds.

[0081] Explanation of symbols

[0082] 1…sanitary napkin, 2…back sheet, 3…surface sheet, 4…absorbent body, 5…wrapped sheet, 7…side nonwoven fabric, 8…main adhesive layer, 9…wing adhesive layer, 10…packaging sheet, 11…main peeling sheet, 12…wing peeling sheet, 13…side edge sealing portion, 14…fixing tape, 20…functional agent, 21…folding auxiliary line, N…individually packaged sanitary napkin, W…wing-shaped folding wing W.

Claims

1. An individually packaged absorbent article, characterized in that: The absorbent article is individually packaged by being folded along the length direction together with the packaging sheet, and the absorbent article has a surface sheet constituting a skin contact surface layer and a pair of wing-shaped flaps having a wing adhesive layer for fixing to underwear. The wing-shaped flaps are folded toward the skin contact surface, and the wing adhesive layer provided at the folded portion is integrally covered by a release sheet. The surface sheet in the region where the release sheet is laminated contains a functional agent having a specific function, and the wing-shaped flaps are folded at both side portions that are not in direct contact with the surface sheet. The release sheet is laminated on the entire surface of the region containing the functional agent.

2. The individually packaged absorbent article according to claim 1, The functional agent is arranged over the entire surface in a predetermined area, or is arranged in plurality at intervals in the longitudinal direction or the width direction of the absorbent article, or is arranged in plurality at intervals in the longitudinal direction and the width direction of the absorbent article.

3. The individually packaged absorbent article according to claim 1, When the underwear is worn, the wing-shaped flap is folded back to the folding line position along the crotch portion of the underwear, and the wing-shaped flap is folded together with the release sheet.

4. The individually packaged absorbent article according to claim 1, When the underwear is worn, a folding auxiliary line is arranged at the folding line position of the wing-shaped flap which is folded back along the crotch portion of the underwear.

5. The individually packaged absorbent article according to any one of claims 1 to 4, The two sides of the skin contact surface are provided with side nonwoven fabrics along the length direction. The functional agent is contained in the surface sheet between the side nonwoven fabrics on both sides.

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